50results about "Sludge drying" patented technology

The invention relates to thallium-containing wastewater treatment equipment which comprises a treatment pond provided with a water outlet pipe, a circular material collecting disc is arranged at the bottom in the treatment pond, the top of the side wall of the material collecting disc is turned outwards to form a circle of bent part, the side wall of the bent part is of a net-shaped structure, a sealing plate is arranged at the top of the bent part, and a water outlet pipe is arranged at the bottom of the sealing plate. The sealing plate is connected with a convex block below the bent part through a mounting rod, a rack driven by a driving mechanism is arranged on the sealing plate, a cleaning mechanism located right above the interior of the opening of the material collecting disc is further arranged at the top of the treatment pond and comprises a cylinder driven by a motor I, a circle of groove is formed in the bottom of the cylinder in a surrounding mode, and the motor I is connected with the motor I; the side wall of the cylinder is provided with a drainage hole communicated with the interior of the groove, the two sides of the bottom of the cylinder are provided with a scraping plate and a collecting assembly respectively, the bottom of the material collecting disc is provided with a round hole used for the cylinder to penetrate through, and the round hole is sealed through a sealing mechanism. Sediments can be conveniently collected and are prevented from being discharged together with liquid to block the water outlet pipe.

A centrifugal pellet dryer system includes a centrifugal dryer, a blower to generate counter-current airflow across the centrifugal dryer, damper(s), moisture sensor(s), airflow sensor(s), processor(s), and a memory. The processor(s) continuously monitor (i) the airflow across the centrifugal dryer via the airflow sensor(s), (ii) the moisture level of the pellets via the moisture sensor(s), (iii) a blower motor load, and (iv) a centrifugal dryer motor load. The processor(s) determine whether the airflow falls below a predetermined threshold, and responsive to such determination, automatically initiate a water and / or air spray to reduce fines within the centrifugal dryer. The processor(s) continuously compare the moisture level of the pellets to predetermined threshold(s), and dynamically adjust the damper(s) and / or the blower motor load, thereby adjusting the moisture level of the pellets. The processor(s) continuously determine whether the slurry requires additional or less water, and automatically adjust water to the slurry based on such determination.

The present application relates to the technical field of sludge drying, and discloses a sludge low-temperature drying device, which comprises a pretreatment box and a drying box, a conveying mechanism, an air supply mechanism and a dehumidification mechanism are arranged in the drying box, the drying box comprises a feeding port and a discharging port, the conveying mechanism is used for conveying sludge at the feeding port end to the discharging port end, the conveying mechanism comprises a conveying belt, a first material guide and a second material guide, the conveying belt comprises a first conveying section and a second conveying section, the first conveying section is located below the feeding port, the first material guide is arranged on the first conveying section and is used for guiding sludge on the first conveying section to the second conveying section, and the second material guide is arranged on the second conveying section and is used for guiding sludge on the second conveying section to the discharging port. The present application is used for solving the problem that in the prior art, a plurality of conveying belts need to be arranged in the drying box so as to cooperate with the overturning mechanism to overturn the sludge, and the cost is high.

The invention relates to the technical field of drying, and discloses a scraper roller drying device and method. The drying roller is rotationally connected to the mounting frame and comprises a first side face and a second side face, and the first side face and the second side face are the surfaces on the two sides of the longitudinal symmetry face of the drying roller correspondingly. The first guniting pipe is installed on the installation frame, and a plurality of first guniting holes are formed in the side wall of the first guniting pipe and correspond to the first side face. The second guniting pipe is installed on the installation frame, and a plurality of second guniting holes are formed in the side wall of the second guniting pipe and correspond to the second side face. The scraping end of the scraper abuts against the second side face, and the first guniting pipe, the scraper and the second guniting pipe are sequentially arranged in the rolling direction of the drying roller. According to the scraper roller drying device and method, the drying efficiency is improved.

The present invention relates to a drying apparatus for evaporating volatile constituents from a starting material to be dried, to a process for producing an isocyanate using this drying apparatus and to the use of the drying apparatus for drying distillation bottoms streams, oil-containing waste, waste paint or coating materials, sewage sludges, mineral substances and coal slurries contaminated with organic compounds. In the drying apparatus the evaporated constituents (vapours) are passed into a condenser via a vapor dome and a vapor conduit. The drying apparatus has the feature that partial condensation of the vapours in the vapor dome and / or in the vapor conduit is intentionally allowed or induced during operation, and condensed constituents of the vapours are discharged from the drying apparatus via means installed for this purpose in the vapor dome and / or the vapour conduit.

Method for the treatment of sewage sludge (2) which at the beginning of the process has a dry matter content in the range of 30 to 75 wt.%, comprising: a) Feeding the sewage sludge (2) into a pelletizing unit (3) with a motor-driven press (4), b) Pelletizing the sewage sludge (2) with the pelletizing device (3) to produce pellets (5), c) Transferring the pellets (5) obtained in step b) to a drying device (6), d) Drying the pellets (5) in the drying device (6) so that the pellets (5) have a dry matter content of at least 80 wt.% after drying.

The invention relates to an efficient synergistic sludge treatment device, and relates to the technical field of sludge treatment.The sludge treatment device comprises a sludge treatment line, and the sludge treatment line comprises a sludge feeding mechanism, a sludge dewatering mechanism, a relay conveying mechanism, a drying mechanism and a sludge discharging mechanism which are sequentially communicated; a heat medium supply mechanism; an air supply mechanism; the air preheating mechanism, the heating medium supply mechanism, the drying mechanism and the air preheating mechanism are sequentially communicated, and the heating medium supply mechanism is used for outputting a heating medium and enabling the heating medium to sequentially flow through the drying mechanism and the air preheating mechanism; the air supply mechanism, the air preheating mechanism and the drying mechanism are sequentially communicated, and the air supply mechanism is used for outputting air and enabling the air to sequentially flow through the air preheating mechanism and the drying mechanism; the air preheating mechanism is used for conducting heat exchange between a heating medium and air. And the tail gas purification mechanism communicates with the drying mechanism. The heat energy utilization rate in the sludge treatment process can be increased, and the operation energy consumption can be reduced.

A plant for treating organic material, having a reactor configured to dry organic material and a closure device (9) operating on a loading channel (6) for feeding material into the reactor. The closure device is designed to interact with material located at the outlet mouths (7) of the loading channel using separation elements (11). According to further aspects, the system may include an active filter (34) on a gas exhaust duct (30) that directs moisture-rich gases outside the reactor. In addition, the plant may be equipped with one or more suspension systems (57) that connect a frame (56) supporting the reactor to an angular position sensor (59), enabling translational movement of the sensor (59) relative to the frame. In other aspects, a process for treating organic material is provided, which involves loading the material into the reactor in a differentiated manner across two or more zones (3a) within the reactor (2).

A process and a plant for treating organic material, having a reactor configured to dry organic material and a closure device (9) operating on a loading channel (6) for feeding material into the reactor. The closure device is designed to interact with material located at the outlet mouths (7) of the loading channel using separation elements (11). According to further aspects, the system may include an active filter (34) on a gas exhaust duct (30) that directs moisture-rich gases outside the reactor. In addition, the plant may be equipped with one or more suspension systems (57) that connect a frame (56) supporting the reactor to an angular position sensor (59), enabling translational movement of the sensor (59) relative to the frame. In other aspects, treating organic material is provided, which involves loading the material into the reactor in a differentiated manner across two or more zones (3a) within the reactor (2).

Disclosed is a continuous centrifugal dewatering device including an external case having an internal space, a feed supply pipe to which a slurry as a mixture of a solid and a liquid is supplied, a basket provided inside the external case, a plurality of holes formed in the basket, a pusher plate provided inside the basket and configured to discharge a slurry cake attached to an inner circumferential surface of the basket to the outside of the external case, a non-contact seal configured to prevent the first gas from flowing into a space between the external case and the basket, and a gas inlet to which a second gas, which flows in a reverse direction with respect to a flow direction of the first gas flowing to the space between the external case and the basket, is supplied.

A solid feces treater includes a dehydrator extracting a liquid component from first solid feces to produce second solid feces, a dryer evaporating a liquid component of the second solid feces to produce third solid feces, and a combustor burning the third solid feces, wherein the second solid feces have a solid content of about 25 % to about 30 %, and the third solid feces have a solid content greater than or equal to about 90 % and less than about 100 %.

A sludge treatment unit provided in a sludge cycling device for recycling sludge discharged from a food waste treatment device and configured to treat the sludge introduced from the food waste treatment device includes a housing having a plurality of perforations to discharge water from inside to outside thereof, a sludge input hole provided in the housing to pass through from the outside to the inside of the housing to receive the sludge, a dehydrated sludge outlet provided at a side different from the sludge input hole to discharge dehydrated sludge, and a shaft having a shaft body portion provided inside the housing and a spiral blade provided on an outer circumferential surface of the shaft body portion, the shaft being rotated by a rotational force received from a motor to move the sludge from the sludge input hole toward the dehydrated sludge outlet.

The invention relates to a method for controlling a drying plant (1), in particular a sewage sludge drying plant, for drying moist material (2), especially sewage sludge, in which the moist material (2) is fed into a drying chamber (5) of the drying plant (1) via an inlet (3) and in which the at least partially dried material (2) is discharged from the drying chamber (5) via an outlet (4). Furthermore, the amount of water evaporated per unit time during the drying of the moist material (2) is determined. In addition, the amount of moist material (2) fed into the drying plant (1) per unit time is increased or decreased, taking into account the determined amount of water evaporated per unit time. The invention also relates to the drying plant (1).

A multi-functional slurry processing system (“VARCOR”) and associated methods is disclosed. The present examples provide a multi-functional slurry processing system incorporating systems and methods for separating liquid and solid components in slurries. In particular the systems and methods described herein produce clean water, dried solids, and potential concentration of desirable constituents with a boiling point lower than water. At least one example of the multi-functional slurry processing system provides a self-contained processing facility configured to efficiently convert high water-content slurries into its constituent solid and liquid fractions and subsequently generating and collecting clean water and concentrating desirable constituents with a boiling point lower than water. The multi-functional slurry processing system advantageously applies thermodynamic principles in a system which may include various combinations of a preheater, a degassing unit, a dryer, a steam filter, a compressor, a concentrating tower, and a condensation unit.

The application relates to the technical field of granulation and drying of livestock and poultry manure, biogas residue and sludge, and discloses a drying and quantity-reducing machine for resource utilization of waste perishable organic pollutants, wherein the bottom layer of the drying and quantity-reducing machine is arranged as an electric heating layer, the middle layer is arranged as a conveying mechanism, and the top layer is arranged with a feeding hopper and a water vapor discharging mechanism. The conveying mechanism of the middle layer is designed as a modular splicing mode, so that the required output can be adapted by only adjusting the heating power and the conveying layer number without changing the floor area. The conveying mechanism is arranged as an odd number to ensure that the feeding and discharging are in two different directions. The upper and lower two conveying mechanisms are designed to be staggered in the longitudinal direction and have opposite movement directions, so that the material conveyed by the upper layer is automatically turned over when being transferred to the next layer, the material can be uniformly heated and water vapor is uniformly emitted, the residence time of the dried material particles in the machine is consistent, the drying effect and the drying uniformity are improved, and the material dehydration drying reliability is improved.

The present invention provides a drying apparatus. The apparatus includes a first, upper chamber comprising a freezing section; and a second, lower chamber comprising a thawing section and a drying section. The first, upper chamber further includes an inlet and first conveying means arranged to convey material through and within the freezing section. The second lower chamber includes second conveying means arranged to convey material through and within the thawing section, and third conveying means arranged to convey material through and within the drying section. A first outlet is provided in the drying section through which dried material exits the apparatus. Generally, the material provided to be dried by the drying apparatus is alum sludge.

A plant for treating organic material, having a reactor configured to dry organic material and a closure device (9) operating on a loading channel (6) for feeding material into the reactor. The closure device is designed to interact with material located at the outlet mouths (7) of the loading channel using separation elements (11). According to further aspects, the system may include an active filter (34) on a gas exhaust duct (30) that directs moisture-rich gases outside the reactor. In addition, the plant may be equipped with one or more suspension systems (57) that connect a frame (56) supporting the reactor to an angular position sensor (59), enabling translational movement of the sensor (59) relative to the frame. In other aspects, a process for treating organic material is provided, which involves loading the material into the reactor in a differentiated manner across two or more zones (3a) within the reactor (2).

A plant for treating organic material, having a reactor configured to dry organic material and a closure device (9) operating on a loading channel (6) for feeding material into the reactor. The closure device is designed to interact with material located at the outlet mouths (7) of the loading channel using separation elements (11). According to further aspects, the system may include an active filter (34) on a gas exhaust duct (30) that directs moisture-rich gases outside the reactor. In addition, the plant may be equipped with one or more suspension systems (57) that connect a frame (56) supporting the reactor to an angular position sensor (59), enabling translational movement of the sensor (59) relative to the frame. In other aspects, a process for treating organic material is provided, which involves loading the material into the reactor in a differentiated manner across two or more zones (3a) within the reactor (2).

Methods of biosolids processing disclosed herein may be configured in a two-stage process. The methods include the step of distributing biosolids in an input state onto a first thermal floor disposed within a first greenhouse, the first thermal floor adapted to transfer heat to the biosolids from a working fluid communicated through the first thermal floor thereby transforming the biosolids from the input state into a first processed state at a first stage of the two-stage process. The method includes the step of distributing the biosolids in the first processed state onto a second thermal floor disposed within a second greenhouse and then heating the biosolids thereby transforming the biosolids from the first processed state into a second processed state at a second stage of the two-stage process by heating the biosolids. Apparatus that functions to implement the methods are also disclosed.

To provide a sludge treatment apparatus which is provided in a sludge recycling apparatus for recycling sludge discharged from a garbage treatment apparatus and treats the sludge flowing in from the garbage treatment apparatus.SOLUTION: A housing having a predetermined space formed therein, a plurality of vent holes formed therein to discharge water therein to the outside, and a sludge input hole formed therein to receive the sludge, the sludge input hole having a through-hole shape, a dewatered sludge outlet provided at the other side of the sludge input hole to discharge dewatered sludge, a shaft body part provided in the housing, and a blade spirally provided on an outer circumferential surface of the shaft body part, A shaft rotating by receiving a rotational force from the motor to move the sludge from the sludge inlet toward the dewatered sludge outlet.SELECTED DRAWING: Figure 18

A drying process of sewage sludge is disclosed, of the type which performs the drying using superheated steam and wherein the sludge is placed to dry as extruded products on sliding shelves, of the conveyor belt type, one on top of the other, the extruded products moving from one shelf to the other until they come out dried, due to the action of said steam. According to the present invention, the extruded are placed substantially in a straight line onto said shelves, in orderly parallel rows. A plant for the implementation of the above-said process is also disclosed.

A feedstock processing apparatus (110), which is operable to prepare feedstock for use in a thermochemical decomposition system (120). The thermochemical decomposition system (120) decomposes feedstock produced by the feedstock processing apparatus to produce at least one solid, one liquid and one gas. The feedstock processing apparatus (110) includes a slurry processing device (50), a mixer (60), a vacuum processor (70); and a pump (80). The slurry processing device (50) reduces moisture level in the mixture of substantially dry processed material and fluid by heating the mixture. The mixer (60) receives the reduced moisture slurry from the slurry processing device (50) and reduces particle in a fine suspension before the material is passed through the vacuum processor (70). The vacuum processor (70) being operable to deaerate and remove further moisture from the fine particulate material to produce feedstock, which the pump (80) transfers to the thermochemical decomposition apparatus (120).

The utility model relates to the technical field of sludge drying, in particular to a sludge drying system. The sludge drying system comprises a drying machine used for drying sludge. A first medium passage of the dryer is used for circulating a first heating medium. The heat accumulator comprises a heat accumulator body, a semiconductor thermoelectric structure, a first heat exchange channel and a second heat exchange channel. When the semiconductor thermoelectric structure is powered on, the refrigeration end absorbs heat in the second heat exchange channel, and heat generated by the heating end is transmitted to the heat accumulator. And when the first heat medium is introduced into the first heat exchange channel, the heat of the heat accumulator is transferred to the first heat medium. When a first heating medium is introduced into the first heat exchanger, heat of the external environment is transferred to the first heating medium; a second heat exchanger; when a second heating medium is introduced into the second heat exchanger, heat of the external environment is transferred to the second heating medium. In this way, the heat storage efficiency and the energy density of the heat accumulator can be improved, meanwhile, the energy cost is reduced, and peak-valley arbitrage is achieved.

Modular system of drying humid material, comprising a drier housing having a material inlet and outlet, a drying gas inlet and outlet, a particle separator downstream of drier housing. Drier housing comprises drying chambers. The system further comprises an air fan, and a heater. A gas duct connecting drying gas inlet and drying gas outlet defines a closed loop. A condenser is arranged in gas duct. Drying chambers comprises a rotary impeller means, and drying gas inlets. A dried-hot product cooler comprising a housing having a dried-hot product inlet, a cooled dried product outlet, a cool air supply means, and a fan arranged to draw cooled air through dried hot product in cooler.

Disclosed is a system for heat exchange between a water treatment device of a sewage treatment plant and an external plant such as a data center. The system comprises: a hot air supply unit which supplies heat generated from the external plant to a reactor using microorganisms in the water treatment device; and a coolant supply unit which supplies, to the external plant, treated water discharged from the water treatment device as a coolant for heat dissipation of the external plant. Complementary heat exchange between the external plant and the sewage treatment plant is possible, and thereby, various issues can be addressed simultaneously in terms of environmental and economic aspects.

The invention relates to a process for producing apple juice with reduced sugar content comprising: - a step of processing apples (100) at the end of which an apple juice, called primary juice (101), and apple distillers' grains (102) are obtained; - a step of drying (13) the apple distillers' grains (102) using an air stream (F), the air stream (F) being charged with vapors at the end of the drying step (13); - a step of producing (14) a secondary juice (103) by condensation of the vapors from the air stream (F); - a step of incorporating (15) the secondary juice (103) into the primary juice (101) to obtain a final apple juice (104).

The invention discloses a gas heat storage oxidation-based high-temperature flue gas sludge treatment environmental protection device, which comprises a cylinder body, a draining mechanism and a drying assembly, the draining mechanism is installed in the cylinder body, the bottom of the cylinder body is provided with a box body, the four end parts of the lower part of the box body are provided with supporting legs, one side of the top of the cylinder body is provided with a feeding mechanism, and the other side of the cylinder body is provided with a discharging mechanism. The end of the feeding mechanism penetrates through the barrel to be connected with the draining mechanism, the drying assembly is installed at the end, away from the barrel, in the box body, and an extrusion mechanism is installed in the box body and below the barrel and located on one side of the drying assembly. According to the sludge drying device, sludge is input and discharged after being dried through the feeding mechanism and the drying conveying belt, the sludge can be continuously dried, participation of workers in the whole process is reduced, and the working efficiency of sludge drying is improved.

The invention discloses a device for co-processing municipal sludge by a kiln and a sludge treatment method, and belongs to the field of sludge treatment. A device for co-processing municipal sludge through a kiln comprises a tunnel kiln, a sludge drying furnace, a heat collector, a feeding device and a discharging device, an opening is formed in the upper portion of a brick outlet section of a cooling zone at the tail of the tunnel kiln, and the sludge drying furnace is rotationally erected above the opening. A first sealing chamber communicated with the tunnel kiln is arranged between the outer side of the sludge drying furnace and the opening in a sealing manner; the sludge drying furnace comprises an outer rotating drum and an inner rotating drum, the inner rotating drum and the outer rotating drum are provided with flow guide spiral blades with opposite rotating directions, and a sludge feeding hole and a sludge discharging hole of the sludge drying furnace are positioned at the same end; a sludge discharge end of the sludge drying furnace is provided with a closed structure for separating a sludge discharge port from external air, a tail port of the heat collector corresponds to an inner rotary drum at a feed end of the sludge drying furnace, and a waste gas port of the sludge drying furnace is connected with waste gas treatment equipment through an air duct and a fan.

Disclosed herein is a sludge drying system comprising: a system input for receiving a wet sludge stream, wherein the wet sludge stream comprises water and solid material; a first dryer arranged to receive, at an input of the first dryer, the wet sludge stream and to heat the wet sludge stream such that at least part of the water in the wet sludge stream is evaporated to thereby generate evaporate and a partially dry sludge stream, wherein the first dryer is an indirectly heated rotating disc dryer that comprises a first output for outputting evaporate and a second output for outputting the partially dry sludge stream; a second dryer that is an indirectly heated rotating disc dryer and is arranged to receive, at a first input of the second dryer, a stream that is dependent on the partially dry sludge stream output from the first dryer and to receive, at a second input of the second dryer, the evaporate from the first dryer, wherein the second dryer is arranged to use to the received evaporate to indirectly heat the received stream at the first input to thereby generate and output a substantially dry sludge stream; and a system output for outputting at least part of the substantially dry sludge stream from the system.